Breakouts:

site type timestamp offset
THL-0085 level 2015-08-11 10:00:00 -5.70
THL-0085 level 2015-08-22 03:00:00 5.07
THL-0085 level 2015-08-30 20:00:00 -0.59
THL-0085 velocity 2015-07-09 07:00:00 2.25
THL-0085 velocity 2015-07-14 07:00:00 -2.30
THL-0085 velocity 2015-07-19 11:00:00 0.20
THL-0085 velocity 2015-08-11 04:00:00 2.85
THL-0085 velocity 2015-08-22 02:00:00 -2.94
THL-0085 velocity 2015-09-09 02:00:00 2.58
THL-0085 velocity 2015-09-14 03:00:00 -2.64
THL-0085 velocity 2015-09-19 10:00:00 0.33
OA-0020 velocity 2015-07-18 14:00:00 -0.91
OA-0020 velocity 2015-08-17 06:00:00 0.75
OA-0020 velocity 2015-08-22 06:00:00 -0.78
OA-0020 velocity 2015-09-17 04:00:00 0.78

Appendix: A complete list of monitored sites